Surface cooler and heater



Aug. 30, 1932. CORNELL, JR 1,874,458

SURFACE COOLER AND HEATER Filed Sept. 26, 1930 3 (D Q) Q ATTORNE s.

Patented Aug. 30, 1932 one s aarrz e. oormnnr. .1 or MOUNTAIN: LAKES, unw JERSEY SURFACE COOLER Ann as ram.

Application filed September 26,- 1930. Serial No. 484,532.

This invention relates'to surface coolers or heaters and more especially to devices of this character for treating dairy products.

Acommon type of surface cooler or heater foridairy products comprises a plurality of super-posed horizontal pipes serially connected, through which cooling or heating fluid is, caused to flow. Above the top pipe is provided a trough or pipe having a series of perforations through which the dairy productwdrops on to. the top pipe and thence In such defiows overthe remaining pipes.

vices, the distribution ofthe dairy product overthe pipes isnot always uniform and the clogging of any of the apertures with sedimentjor foam renders the distribution less uniform and also reduces the total flow of the dairy. pro duct.

An obj ect. of .this invention is a distributor for surface heaters or coolers by which the liquid is uniformly distributed over thepipes andtli eurate offlow is maintained substantially uniform in spite of sediment or foam.

Otherobjects, novel features and advantages of this invention will be apparent from the following specification and accompanying. drawing, wherein Fig. 1 is an end elevation of a device embodying. the invention.

Fig.2 is a section on the line 2-2 of Fig. 1. Fig. .3 is a sectionon the line 33 of Fig. 2. Fig. 4 is a fragmentary plan view, and I Fig.5 is a section on the line 55 of Fig. 4.

A plurality of superposed serially connected pipes constitute the heating or cooling member which is supported by brackets 11 from. vertical posts 12. The structure, arrangement and means of support of these pipes mayibe any of the forms well-known inthe art" Atrough of the usual type is supported by the bottom brackets 11 forreceiving liquidwhich has flowed over the pipes 10. A bracket 14 is supported by each post 12 and slot 15. Abolt 16 threadedatzeach end extends. through. this. slot; and carriesv semispherical members 17, the. faces ofwhich rengage the top and; bottom; surfaces of, the

bracket 14. lVasherslS are also carried ;by the boltslti and have recesses into which the curved portions of the. members. 17, project. Nutsl9 are threaded zon the b.olt;1 6 and comprise means ,for clamping the, bolt; andgthe members carried by the, bolt .to thebracket.

A cradle 20 is ,supported'bythe.upperend of each bolt 16; The cradles 20 receivelugs, 21 projecting fromtthe end faces of atrough 22, which isgsupported by. the cradles. The trough. comprises a curved plate 28 ,which forms one side wall and a fiat vertical plate 3 2a which formstheother side wall. The vertical plate2 l :is connected vat its bottom edge to the curved {plate 23:.Wl1l0l1 extendsbeyond 'theplate 24 .to form a liporapron 25. The

endscof thetrough are formed by plates 26 which extend beyond the plate 24to form end walls for theapron 25. The vertical wall '24 is of lessheightthan thecurved wall 23 and the end plates .26 and is provided with a that the, liquid stream will divide equally on toithe opposite-sides of the collar." Also, the trough may be. maintainedzaccurately horizontal, although? the .pipes. may. have been moved slightly: out. ofshorizontal. by reason of sagging of the .floor'and the like.

I 7 -Also, the troughi'maybe tilted "as desired to is providedat its free end with an elongated 1 vary the slope oftheapron 25. These adjustments are accomplished by means of the bolt 16 and the members carried thereby. Either end of the trough may be raised or lowered by proper adjustment of the nuts- 19. The trough maybe moved horizontally by loosening the nuts 19 and move the bolt 16 in the slot 15. In a similar manner, the

, trough may be tilted by angular movement of the bolt in the semi-spherical members 17.

In the use of this apparatus, liquid dairy product is introduced into the trough 22 at a rate of'fiow greater than can be discharged by the lower row of holes 27 but preferably less than can be discharged by all of the rows of holes 27. Liquid will therefore flow out of the requisite number of rows of holes. The

liquid upon striking the apron 25 is spread out into a thin sheetof uniform thickness,

which extends down to the top pipe 10,thereby supplying the-dairy product uniformly to the entire length of such pipe. Should a number of the holes become clogged, the uniformity of'distribution will not be affected materially, due-to the action of the apron 25 and if there is any lack of uniformity it will, quickly be overcome due tothe fact that thelevel ofthe liquid in the trough will rise sufiiciently to disch argethrough the next row of holes. Also, the rate of flow will remain substantially uniform although 1t may be reduced temporarily while the level of the liquid is rising to the level of the next series of holes. The possibility of overflow of dairy products from the apparatus due to clogging of the apertures is eliminated by the fact that thelwall-24 is of less height than the remaining walls. Should the trough .become filled, the liquid will escape over the edge ofthe wall 24 and flow on to the apron 25 by which it will bedirected to the cooler.

The apron effects blending of the individual streams of liquid before they reach the i cooling or heating surfaces and causes dellvery of the dairy'product at a minimum velocity, thereby minimizing splashing. Thefoam or froth forming on the surface of the dairy products andnot flowing through the apertures will escape over the top of the vertical wall 24 and mix with the liquid on the apron. Uniform and even flow and distribution of the product are effected by the apron regardless of the volume of flow. Either hot or cold liquid products may be treated by this apparatus. By adjustment of the supporting means for the trough its position relative to I the pipes may be altered to locate the end .1 of the apron directly over the pipes and in the relation best adapted to produce a muform layer of liquid over the, surfaces of the pipes; The trough is sanitary and easy to clean and. maybe easily removed and accurately replaced.

It is of course to above disclosed without in any way departbe understood that va- 6; .rious modifications may be made in the device trough, a plurality of superposed rows of gholes in the wall of less height, an apron extendin therefrom below the bottom row of holes or spreading liquid escaping through said holes into a stream of uniform depth, and

walls at the lateral edges of the apron.

2., A trough adaptable for the distribution of liquid over a surface cooler and having a side wall, of lessheight than the remaining side and end walls, means for supporting said trough above said surface cooler for horizontal, vertical and tilting adjustment of the trough, said sidewall of less height being provided with a plurality of superposed rows of holes, an apron extending therefrom below the'bottom row of holes for spreading liquid escaping through said holes into a stream of uniform depth, and walls at the lateral edges of the apron.

3. A trough adaptable for the distribution of liquid over a surface cooler, and means for supporting said trough for vertical, horizontal and tilting adjustment, said means comprising a. pairv of horizontal brackets having "vertical slots, a threaded bolt engaging the trough and extending through veach slot,

blocks enga ing the upper and lower faces of each brac et and having rounded portions, additional blocks having recesses receiving said rounded portions, both setsv of blocks having apertures through which said bolts extend, and nuts on each bolt engaging the last named blocks.

4. A trough adaptable for the distribution of liquid over a surface cooler, having a side wall of less height than the remaining side and end walls, a plurality of superposed rows of holes in the wall of less height, an apron extending therefrom below the bottom row of holes for spreading liquid escaping through the holes into a stream of uniform depth, walls at the lateral edges ofthe apron, and means for supporting said trough for vertical, horizontal and tilting adjustment, .said means comprising a pairof horizontal brackets having vertical slots, a threaded bolt engaging the trough and extending through each slot, blocks engaging the upper and lower faces of each bracket and having rounded portions, additional blocks having recesses re- 1 ceiving said rounded portions, both sets of blocks having apertures through which said bolts extend, and nuts on each bolt engaging the last named blocks.

5. A trough adaptable for the distribution.

of liquid over a surface cooler, means for supporting said trough above said surface cooler for horizontal, vertical and tilting adjustment of the trough, a row of holes in one Wall of said trough and an apron extending from the trough below the row of holes for receiving liquid escaping through said holes and delivering the same to said cooler in a stream of uniform depth.

In testimony whereof, I have signed my name to this specification.

FRITZ G. CORNELL, J R. 

